Structural Wood Repair
Restore the load path—not just the appearance of damaged wood.
Structural wood repair requires more than removing the visibly soft section. Sound HP traces how loads move through joists, beams, posts, sill plates, and foundations, then develops a repair sequence that protects the house while damaged components are reinforced or replaced.
Schedule a Free Inspection · Call or text 425-364-3420
Signs this service may help
- Sagging, sloping, bouncy, or soft floors
- Cracks that return near doors and windows
- Doors that rub, swing, or no longer latch
- Visible rot, splitting, crushing, or insect damage
- Improvised blocks, shims, or undersized supports
- Previous repairs that do not bear correctly
How the repair comes together
- Document the structure: We map framing direction, spans, bearing points, damage, deflection, and moisture conditions.
- Plan the load transfer: Temporary support, repair sequence, materials, connections, and access are defined before damaged wood is disturbed.
- Repair or replace: Affected members are sistered, spliced, reinforced, or replaced according to the approved scope.
- Correct the cause: Moisture, drainage, pest, or support conditions are addressed or clearly coordinated so the new work is protected.
What your repair may include
- Floor joist repair and reinforcement
- Main beam and girder repair or replacement
- Rim joist and sill plate repair
- Post, footing, and connection corrections
- Temporary shoring and controlled sequencing
- Moisture-control coordination
From the field: A repair is only permanent when the load path and moisture source are both addressed
Structural components work together. A new joist can still fail to perform if its ends do not bear, the beam beneath it is damaged, or the post below has settled. Our inspections look beyond the most obvious board.
Wood decay is usually evidence of moisture, and insect damage may require a separate pest treatment. The repair plan identifies those dependencies so new framing is not installed into the same conditions that damaged the old material.
Some projects require engineering, permits, or specialty coordination. We flag those needs before construction and build the work sequence around the approved requirements.
Frequently asked questions
Can damaged joists be sistered instead of replaced?
Sometimes. Sistering is appropriate only when the new member can achieve adequate bearing and connection over the required length. Severe end damage or obstructed bearing may call for a different repair.
Will structural repair make my floors perfectly level?
The first objective is safe, stable support. The amount of lift that is practical depends on the home's age, finishes, utilities, prior settlement, and risk of secondary damage.
Do structural repairs require a permit or engineer?
Requirements depend on the repair and jurisdiction. We identify when engineered details or permits may be needed and incorporate them into the project plan.
Can you handle moisture repairs at the same time?
Yes. Coordinating structural repair with drainage, encapsulation, or humidity control helps protect the new wood and reduces duplicated work.
Related services
Start with a clear diagnosis
Your inspection documents current conditions, likely causes, access constraints, and the repair sequence. You receive a written scope explaining what your home needs—and what it does not.
Request an Inspection · customercare@soundhp.com
Final repair limits, equipment, code requirements, and supporting trades are confirmed in the written proposal.# Crawl Space & Structural Repair Services
Protect what supports your home.
Sound Home Preservation helps homeowners across Greater Seattle and North Puget Sound solve crawl-space moisture, drainage, insulation, and structural wood problems with a clear inspection-first process.
Schedule a Free Inspection · Call or text 425-364-3420
Moisture Control
Crawl Space Encapsulation
Create a cleaner, drier space with a reinforced liner, sealed seams, and humidity control designed around your home.
Crawl Space Waterproofing
Find the path of recurring water and manage it with the right combination of drainage, sump equipment, sealing, and moisture control.
Crawl Space Drainage Systems
Capture water at vulnerable edges and low points, then direct it to a dependable discharge point.
Crawl Space Sump Pump Systems
Install a serviceable basin, correctly sized pump, check valve, and discharge route as part of a complete water-management plan.
Crawl Space Dehumidifier Installation
Control airborne humidity after bulk water and ground vapor have been addressed.
Crawl Space Insulation & Air Sealing
Improve comfort with an insulation approach that works with the crawl space's moisture strategy.
Structural Wood Repair
Structural Wood Repair
Repair damaged framing only after the moisture, pest, or loading issue that caused it has been identified.
Floor Joist Repair
Restore support where joists are cracked, notched, rotted, undersized, or pulling away from their bearings.
Main Beam & Girder Repair
Address sagging, rot, splits, and inadequate bearing in the primary members that carry the floor system.
Rim Joist & Sill Plate Repair
Repair decay and damage at the perimeter where the floor framing meets the foundation.
Crawl Space Support Posts
Replace or improve leaning, corroded, undersized, or poorly supported posts with a properly detailed support plan.
Wood Rot Repair
Remove compromised material, restore structural capacity, and correct the conditions that allowed decay to continue.
Start with a clear diagnosis
Your inspection documents current conditions, likely causes, access constraints, and the repair sequence. You receive a written scope explaining what your home needs—and what it does not.
Request an Inspection · customercare@soundhp.com
Final repair limits, equipment, code requirements, and supporting trades are confirmed in the written proposal.